Engine-bearing burning-in and oil-burnishing machine.



APPLICATION FILED SEPT. 24. I911.

Patented July 30, 1918.

3 SHEETS-SHEET I I [/wemfar L damA-Jg wzz fness ELL- MILES.

ENGINE BEARING BURNING IN AND OIL BURNISHING MACHINE. APPLICATION FILED SEPT. 24. I912.

3 SHEETSSHEET 2.

Patented July 30, 1918.

-E. J. MILES. ENGINE BEARING BURNING IN AND OIL BURNISHING MACHINE.

APPLECATION FILED SEPT. 24. I9! I.

Patented July 30, 1918.

d SHEETS-SHEET 3 In rep 2% 0/" Jill's @TTES A'ildltli EDWARD J'. MILES, 0F NEWTON, IOWA.

Specification of Letters Patent.

Patented July 30,

Application filed September 24, 1917. Serial No. 193,025.

operate .upon the various-parts of an automobile engine whereby the bearings may be properly smoothed and alined, so that I the crank shaft of the engine may be prop erly journaled.

A further object of my invention is to provide a machine, which is adapted to receive the block of an engine and to provide.

means for revolving the crank shaft which has been ournaled into the roughly finished bearings of the block, so that the bearings may be burned in.

A further object of my invention is to provide a machine embodying in one framework a shaft whereby the crank shaft of the engine may be rotated during either the oil burnishing process or during the burning-in process and which is also capable of supporting the engine, so that. it may be driven under its own power independent of the power of the exterior source ofpower.

A further object of my invention is to provide an improved means whereby the engine block during the burning in process and the engine including the transmission during the oil burnishing process may be supported and alined with the power shaft in my machine, so that power may be se cured from said shaft for either of the processes.

A further objectof my invention is to pro' vide an improved clutch device whereby the power shaft may be operatively connected with the forward half of the universal joint of the automobile transmission during the oil burnish'ing process whereby power may be applied to the crank shaft from the power shaft when it-is desired to rotate the former from the latter but which will ai'itomatically become disengaged when it is desired to operate the engine under its own power.

A further object of my invention is to provide a combined means whereby the power shaft may be operativcly courier-ml with any suitable source ol. power and which is also so arranged that the power shaft may be rotated fol-any desired hum-- ber of turns by hand for testing purpo.-;es, the latte:- means being so devised that the power shaft may not be rotated by hand Cu? without first disconnecting the pou'rl' shalt from the source of power nor could '1- power shaft be connected with the soon of power unless the hand operatim); meat: is first removed to position where (anoint v) :ll cause injury from the rapid rotation caused by the source ot power.

A. further object of my invention to provide a cradle adapted to rccciw- -l a engine bloclc during the burning in pint-oak, 2-: which is capable o vertical adjustment and.

to provide adjustable stops whereby the unward movement of the block may be limited,

so that the block may be rigidly rh mpcd in position where the crank shah. aiined with 1-: the power shaft.

A further object of my invention is to provide an improved bearing burner where- )y the engine block may be readily attached to or detached from the frame oi. the machine during the burning in process, and

to provide means whereby the crank shaft while attached to the engine block may iii: accurately alined with the power shaft or themachine and 'whereby the engine him-l; on may be properly and accurately adjusted with relation to the crank shaft.

A further object. of my invention is to provide in such a machine means for oii. finishing or burnishing the bearings after the burning in process including means for properly alinin the engine shaft with the power shaft of t 10 machine, means for properly adjusting the engine block and means for connecting the-power shaft with the zoo engine shaft in the assembled engine. ineluding a clutch device adapted to engage vthe forward half of the universal joint. of

the engine transmission, which. is so arranged that moving the power shaft. a 1023 quarter of a turn will permit the operator ere 1 connection between the clutch member and the universal joint member before and after a quarter of a turn has been -With these and other objects in View, my invention consists in the construction, arrangement and combination of the various parts of the device whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 shows a side elevation of a machine embodying my invention.

Fig. 2 shows a top or planv view oi the machine shown in Fig. l;

Fig. 3 shows an enlarged side elevation of theclutch device used in connection with the burning in process. i

Fig. 4 shows a sectional view taken on the line 4% of Fig. 3. r

Fig. 5 shows a vertical, sectional view through the clutch device used to connect the power shaft with the universal member of the engine during the oil burnishing process.

Fig. 6 shows a vertical, sectional view taken on the line 6-6 of Fig. 2.

Fig. 7 is a vertical, sectional viewtaken on the line 7-4 of Fig. 1.

- Fig. 8 shows a vertical, sectional view l1av- I inlg parts broken away taken on the linc 88 of Fig. 2.

Fig. 9 shows a vertical, sectional view taken on the line 9-9 of Fig. 2.

Fig. 10 shows a vertical, sectional view illustrating the device whereby the engine block is clamped in place during the burning in process. y i

Fig. 11 shows an enlarged vertical, sectional view taken on the line 1111 of Fig, 2 showing the portion of crank casing and engine supportmg bracket, the latter being shown in section to illustrate the manner in whichit is supported to the clamping devices. v

Fig. 12 shows an enlarged vertical, sectional view of the clutch controlling device whereby the power shaft is peiatively connected with the outside source of power, and

Fig. 13 shows a vertical, sedtional view taken on the line l3-13 of Fig. 1 having shown therein in light lines the outline of the engine block whereby the use of my inn proved device for-holding the engine properly alined is illustrated.

Referring to the accompanying drawings, I have used the reference numeral 10 to indicate generally a pair of longitudinal frame and base members extending therebetween. Fixed to and extending upwardly from the members bers 12, 13, 14, 15 and 16, which ares'paced from each other and support various portions ofthe device, which will be hereinafter described.

' The supports 14 and .15 are 'providecl at y has the inner surface ct its porn niember controlling the shaft 19.

10 are supporting mom-- tot-the engine against movement when the 0 id is in which is jour; flint-able grease cups or the provided. lubricate the bearand 18. Rotatabiy but non-slidabiy is a policy 23., which 'iery at one side beveled to form one member of a cone clutch. Slidabiy but non-rotatably mounted on the 1,9 a sec one clutch Z 5 member 22 adapted to be the cone recess of whereby t connected nit men'iber is p" tending col {not shown} i pair of nine wl rron'i an a nulav collar also provided will: a wardly (intending l1 7 'Y Y 1, i l, )2 naleo m the ones 0] e lllhir; .ihe iree ends of the links z e pivoted to th ends of the second pair of links 28. the latter links having their lower ends iixexl to the ends cl :1 pair of alincd shafts 29, which are secured in bearings formed in brackets 29 which pri'iject from the support 15. At the outer ends oi the shafts 29 suitable sockets 30 are provided, which arc adapted to receive the lever 31 whereby the shafts may be rotated.

it will )0 seen from the forc oing that iotation ot the shafts 29 by means of the lever 31 will swing the links 28 whereby the links 27 will be moved longiludinaily of the machine, which will in turn move the collar 23 longitudinally through the cooperation oi thc'lugs and 26 and the ring 25. it will thus be seen that n'iovemcnt of the lever 31 may either throw the clutch members com prising,- the inside of the pulley 2i and the member 22 into or out of engagement whereby rotation of the pulley 21 may impel-trotation to the powershatt if). A plurality of sockets 32 are secured to the back of the clutch member 22, which are adapted to re ceivc the end of the lever 31 whereby the clutch member 22 and the shaft 19 may be rotated by hand. It will be seen that by this arrangen'ient it-is necessary to attach the clutch control lever in order to move the shaft 19 by hand and detach the hand operating lever in order to throw in the clutch It is, therefore, very unlikely that the clutchmcmbers will accidentally be thrown into engagement when the hand operating means is being used. so that the probabilities of injury to a workman is substantially elimi- 12a nated. I

The supports 15 and 16 are designed to ill) secures plate 33, which forms a clamping table adapted to accurately hold the block.

burning in process is taking place. The plate 33 is formed with a central opening 34. of such general dimensiims as to permit the engine block to be inserted therein and of such width that shoulders formed at the side edgesof the opening will catch the flanges on the engine block to prevent the block from passing through the opening and to provide means for clamping the block in place.

The construction of the parts, which are to cooperate with the plate 33 to receive the lower flange on the engine block, is illustrated in Fig. 10, which shows the shoulder 35 at the lower edge of which is a laterally extending rest 36 upon which the flange ot the engine block rests when the block is first set into the opening 35. A pair of rods 37 and 33 are secured into either side of the plate 33 near'the center thereot and extend downwardly therefrom. A crossbar 39 i pivoted to the lower ends of the rods 37 and 33. The rod 37 is secured to the machine at its upper end and provided with a thumbnut 40 whereby the rod 37 may be vertically adjusted. Two or more stops or turn buttons 41 are. secured to either side of the plate 33, so that in one position of the movement of the buttons +1 their ends will project over the rests 36. A screw or the like .42. is provided as a pivot i'or the turn buttons 41 and a set screw 43 is screw threaded into and projects through the end of the turn button t1, which'is adapted to project over the rests 36.

From the description of the foregoing parts, it will be seen that when the engine block is inserted through the opening in the plate 33, the flanges thereof will rest on the rests 36 while the top of the engine block will rest adjacent to the rod 35). The turn buttons or clamping devices ll are of course, turned to one side when the engine block is inserted into the opening in the plate 33 and when the block has been inserted these clamping devices are then turned back so their ends project over above the edges of the flanges of the engine block.

v If the screws 43in the clam )in" devices ll are turned until their lower ends touch the -flanges of the engine block and then the thumbnut 40 is turned to raise the rod 39, it will be seen that the coiiperation of the upward pressure of the rod 39 with the resistance-of the ends of the screws -13 will form a rigid clamping device to hold the engine block fronrmovement.

L The plate 33 is also provided with a half bearing member illustrated in Figs. 2, 8 and 9 in cross section, which comprises a trough or channel stat adapted to receive the for Ward or crank end of the engine shaft when the latter is iirst set into the machine While I the trough 45 is of greaterd'epth than the trough 44 and may receive the tan belt pulley or starter pinion. The end of the shaft 15 adjacent to the plate 33 has a disk l7 secured thereto. which has a recess" 53 in its face ot the shape of a truncated cone with a base. of the cone flush with the surt'ace ol the disk li'and is provided with a plurality of openings lb adapted to slidably receive a plurality of pins if), The pins 49 are mounted on the end of the collar 50, which is loosely mounted on the shaft 15) between the bearing 20 and the member +7, The collar 50 is provided with an annular groove 51, which receives the forks of a forked lever 52, which is adapted to reciprocate the collar :30 longitudinally of the shaft 19.

it will be understood that the crank shaft of an automobile engine is provided with an annular llangc at the rear end, which has a plurality of openings therein wherelrv the plate may be bolted to the balance wheel of the automobile and the recessed member 47 is designed to have this plate received in the recessed 'l'ace thereof while the pills l are designed to be received in the bolt holes of the llangc at the end of the crank shaft. The shaft 1!) imparts rotation to the-crank shat't while the pins l!) are received in said openings in said plate. Suitable means such as the collar 5?) are arranged to limit the reciprocation ol the. collar 50 on the shaft ll). so that the pins l-l will not slide completelyout. oi the openings in the cup shaped members and will only slide through the openings a distance sullicient to enable their outer ends to project through the openings in the crank sha'lt flange. The pins 45) are somewhat smaller than the openings provided in the plate on the crank shaft. so that it' it should happen that the crank shaft is not properly alined with the shalt 19 then cam movement of the plate at the end of the crank shat't will gradually force the pins 4-!) out of the cupped portion of the, member l7 and out ol the openings in said plate whereby the crank shatt will be. disconncctcd from the power sha'lt if), so that no injury will be done to the bearings ot' the engine block or to the connections of the shaft 19.

The. practical operation o l the parts previ ously dcscribeiLis as follows: When it is desired to burn in thebearings of the block, the block is turned upside down and its top placed on the cross bar 39 or its flanges resting on the rests 36. The crank shaft is then placed with its forward or crank end in the trough or bearing 44 and the plate end within the recess53 and .the lever 52 operated to throw the pins if) through'the openings in the plate at/ the end of the crank shaft. W hen the flange at the end of the crank shaft. is forced into the recess 53, it will be shaft 19. It may be noted in this connection that openings 54 are provided at either side of the plate 33 wherein the pivot or pin 55' of the lever 52 may be received, so that this lever may be installed upon either side of the machine depending upon whether the operator is right or left handed.

As the pins 49 and the cup shaped member 47 together with the bearing 44 are arranged so that the crank shaft received therein must be in exact alinemcnt with the shaft 19, it will be seenthat the crankshaft of the engine will now be in alinement with the shaft 19. It is, however, desirable that the block of the engine should be clamped in place, so that it will be held from movement and its bearings so disposed that they will not put an undue pressure on the crank shaft in any direction whereby the bearings might become unevenly fitted. It will also be seen that if the-engine block were permitted to move longitudinallyof the frame,

the flange on the crank shaft would become disengaged fromthe-recess 53, so that the.

ing devices 41 are turned until their ends rest against the flanges of the engine block. The thumbnut 40 is then turncd'until the rod 39 bears against the engine block whereby the weight of the engine block will he taken off from the crank aft and the block will be clamped in place and held from movement either longitudinally or around the crank shaft. It will be seen that even though the engine block should be'somewhat rotated upon the crank shaft as an axis thetightening; of the tllumbnut 40 will bring the flanges of the block tightly against the lowerends of the screws 43 whereby the forward-end of the crank will be lifted This result does.

with the bearing 44. not substantially affect the alinement of the crank shaft with the shaft 19 but does insure that the crank shaft will be properly journaled in the-engine block during the burning in process. By this arrangement, it

will be seen that if the bearings in theblock have become somewhat worn so that theydo not have the same alinement relative to the block'that they had when they left the factory, the block may positively be clamped in position where the bearings therein are properly alined with the shaft 19,

-The .end of the machine consisting of the portion between the supports and .The rest 62 is provided with an upstanding parts is .prbvitled with a clutch member,

designed topernilt the oil burnishing ess to be accomplished. it has be n desirable when the oil burnishing process to be performed to assemble the engn transmission together, so that they in run together by an outside power to r, in the bearings. I have, therefore, devised means whereby the assembled engine inclu ing the transmission may be supported ant the power from my pulley wheel transmi to the engine shaft by means of the v mission, which is also adapted 'to perm t1. engine to be run under its own power or the final test of the bearings. Toaccoiupii this result, I have found it desirable to nect my shaft 19 with the forward the universal joint of the automobile e1- r as several advantageous results are thereoy secured. In order to support'the forward or crank end of the crank shaft in alineinent with the shaft 19 during the oil' burnishing process I provide a clamp member comprising a semi-circular transverse groove 56 at the upper-central portion of; the support 1?.

and the hinged clamp member 57, which is pivoted by pins 58 to cars 59 formed integral with the support 12. A U-shaped yoke 60 has its ends pivoted to the support 12 in such position that the central portion of the yoke may swing over the free end of the clamp mom or 57 and the set screw 61 is provided wiereby the clamp b may be held from pivotal movem-en the front engine support has been ins i in between the clamp members 56 and NVhen the engine of an automobile sembled, the lower portion of the crani ing is provided with two outwardly eats, ing cars, which are normally adapted to rest upon and be bolted to the longitudinal frame members of the automobile l have provided the support 13. upon which these projecting ears of the engine are adapted to rest and to'be clamped in place. At each 119 upper corner of the support13a device such as illustrated in Fig. 11 is provided wherein these beforementi'oned upwardly extendinm ears are received. This consists of a rest 6'2;

rib 63 upon which the rear endof theturn button 64 is supported while the bolt'65 permits the turn button 64 to be rotatedand its free or inside end to be clamped down against any object beneath it. v

In order to secure a. vertical adjustment of the portion upon which the beforementioncd ears rest, I have provided a'niovable' plate 66 in which the upper end of, a bolt 6'?- is rotatably mounted whereby rotation of a the threhded bolt 67 in the rest 62 raises or lowers the plate 66 whereby the ears on the engine may be vertically adjusted. The end of the shaft 19 -adjacent to the last described a I. o .1

all

oi i-e transmission shaft todrive the d manic sion shaft in one direction.

will be seen that the oneway clutch yinher provided pern iits the transmission ft to be driven from the pulley 21 when so desired or the engine may be driven under its own power and the shape of the teeth 72 is "such that the collar 8 will be moved to throw the teeth out of engagement when the speed of the engine becomes greater than that of the shaft 13). A further advanta e-resides in the use of the two tooth oneivay clutch members herein shown in that if the engine and transn'iission be installed on rests with the front engine support in clan'ip members 56 and 57 the forward f o'f'tbe universal joint will then rest 19 be revolved by hand so that the two th 72 are in a vertical position, it may be :rmined at a glance whether the transmission shaft of the engine is alined horizontally with the shaft 1'!) because if the transmission shaft is not alincd with the shaft the upper surface of the universal iointmember will not flush with the upper rfacc of'tlic clutch niembcix py means of the p ate fi l and the screw he ears on the engine may be vertically "justed until the transmission shaft is horiitally alincd with the shaft ll). which hap- .tienever the universal joint reaches cm of botl: notches adjacent to the Ifnow the shaft be rotated at 1" of a turn in any convenient manlateral aiincment of the crank shaft the shaft 1!) will be auton'iatically se- 1'; practical operation of the parts of vice which have just been described, is completely assembled into the 7 ion to and including'the forward :no universal joint. The crank or forward end of the engine shaft is then inserted in the support l2 and the rear ends the engine shaft terminating in the half o "he universal clutch joint is connected i the clutch 6S and the engine shaft suitaiii ed by the means heretofore de- 'l.

a; tilt is then operated to engage the nieaiher 22 whereby rotation Wlll be led from the pulley--21 to the shaft 19 with the forward half of the universal 'ainst the teeth of the n'ieinbcrt'as. if the member (38 will almost; instantly be moved very desirable as it permits the engine to be rotation of the engine shaft while the bearings are properly lubricated for a considcrable time in order to further smooth and burnish the iabbitt metal. When this smooth or oil burnishing process has been completed, the coils of the engine may be clamped to the bracket 73 and the carburetor connected to any suitable supply of gasolene. It should be mentioned in this connection that when new babbitting has been installed in an engine or the .old bearings refitted, the engine very often is what is termed stifl" so that it is extremely hard to start it and when it is being run some power is lost as the bearings and other parts are still tight so that. it has been found extremely advantageous to test the engine by running it under its own power before it is installed in the frame of the automobile.

By my improved device I am'ablc by a single machine and from a single source of power to do the finishing of the Babbitt bearings in a facile and economical manner. It will be noted that for both processes fitting means have been provided for alining the shaft of the engine with the power shaft in my machine whereby the accuracy of the bearings may not be endangered. In the case of the burning in of the bearings my clutch device is so arranged that if it should happen that the bearings are not properly alined with the power shaft the clutch device will auton'iatically disengage itself, so that injury may not be done to either the parts of the engine or my machine. A similar result also occurs if it happens that the as sembled engine is not properly placed on the supports or rests (32 as the one way clutch away from the forward'hal't' of the universal joint in (use the engine shaft is not alined with the shaft 15).

t will be umlcrstood tln'it my machine is operated by its own power without making it necessary to place the engine in the chassis of the car for the power test. The importance of this feature-may readily be appreciated when it is considered that it requires a considerable amount of time to install the engine in the chassis so that if the engine does not then work properly it is necessary to take it out of the chassis and again place it in the burning in machine.

In this case it may be explained further that the burning in and oil burn'ishin process in connection with these hearings is used Whether new -or 0ld babbitt is used with the bearings whenever it is necessary to take an 1,30

engine to pieces; Eefore the burning in process is started the bearing is so shaped that bebbitt may be clamped very tightly about the shaft by means of the removable parts of the hearing. The burning in and oil burnishing process in reality consists of melting the bebbitt adjacent to the crank shaft until en opening of just proper size is left for the shaft so that if these processes have not been completedproperly the bebbitt still very closely grips the engine shaft end a large amount of power is lost if it is possible to run the engine at all "e no means of testing the state- [is there of the lWUiUlii Z by 'instriuncnts in the present state of the rt, the only real test of the completeness of the burning in and oil burnishing process-2s resides in running the engine under its own p will b machine and i nishing' proccssmuy be alternated with the tests of the engine when it is run under its own power until the running of tee engine shows the operator that the oil burnisbing process bus been properly uccon'iplished. lit should be 'i'iotcd that my machine may be used where the old i'isbbitt in the bearings is left. in as well as where the old bubbitt has been reimied c it and new bsbbitt poured in.

c I claim as inven 'c-n:

e uulley wheel ens for operasmnncctii'ig the t, u. support zit oijunul mounted of said s of suid a 3 ii,

:2. In 2; device of the class described, {1, frame, a shaft ournziled interme irate of the ends of tire frame, means for operatively connecting the crank sliuft'of an suton'iobile engine with one end of sold shaft, means edepted to receive and hold the block of on nutdmobile er ne in position wh re the crank l l with said shaft, e support moun 5 end of b toe fram mes; apportesrs or in automobile to said support in such position that the crank shaft of the engine maybe sliced with said shaft, and means for operetively' connecting the second end of said with the crank shaft of an eutomobileengine, which is supported by said support,

3. In a, device of the class described, a support, a shaft journeled therein, a source of power, means for. operetive'ly connecting said source of-power with and for disconnecting said source of power from said shaft.

a cup shaped member secured to the free end rev rses of said shaft and having a plurality of openings therethrough, a collar slidably mounted OII'SZLld shaft adjacent to the cup shaped member, a plurality of pins fixed to said 001- lur and adapted-to be received in the open-. mgs of said cup shaped member, means :tof

moving said collar longitudinally of the a plate mounted on said supports, a cradle" secured to said plate, a plurality of turn buttons mounted on said plate, a power shaft mounted in, one of said supports, it clutch device secured to said power shaft adjacent to said plate, and means for controlling said .clutch device, the parts being so'urranged that the block of an automobile engine may be received within said plate upon said cradle end, clamped from movement by means of said cradle and turn buttons, so

that the crank shaft of the engine block may be held in ulinement with the power shaffi In a device of the class described, a support for an automobile engine block, a power shef; mounted adjacent to said support, means for operutively connecting said power simft with e shaft in said ciwine block, and

n'ieuns for adjusting said support whereby the engine shaft may be ulined with said power shaft. 7 v

6. In a device of the class described, a support adapted to receive and support an automobile engine, a transmission, a power Shaft mounted adjacent to said support, u clutch means for operatively conneci'zingsaid power shaft witlrthe engine shaft of said engine, means for adjusting said supportwhereby the engine shaft may be allned with said power shaft, and means for automaticelly disconnecting suid' clutch when the speed of the engine shaft becomes greater then the speed of the power shaft.

. 7. 111 a device of the class described, a frame, a support thereon, a supporting means, a power shaft. journaled in said sup porting means, a bearing member in said first support adapted to receive the forward end of the engine, means for quickly detucking the-upper half of said bearing member whereby said engine may be readily removed, a one way clutch member secured to the end of said powershsft, intermediate supports and an adjustable means for clampingthe engine and transmission to the intermediate supports whereby the shaft of the engine may be alined with said power power shaft,- meanswhereby the engine shaft may be alined with the power shaft, a-cluteh member fixed on said power shaft, a clutch member loosely mounted on 'said power shaft, a gearing device operatively connected with said last described clutch member, said first clutch member having means whereby said first clutch member may be manually rotated for rotating the power shaft for testing purposes.

. 9.,In' a device of the class described, a

frame, a shaft journaled therein intermediate ofthe ends of the frame, a pulley wheel journaled to the shaft, means for operatively connecting and for disconnecting the pulley wheel from the shaft, a'support at either end of the frame, a journal mounted in each of said supports, the axes of said journals being alined with the axis of said shaft, a

- clutch member secured to either end of said shaft, and means between one of saidjournals and said shaft for supporting an engine block with the shaft therein and for adjusting said block to position with the eneither end of the frame, a journal mountedv in. each of said supports, the axes of said journals being alined with the axis of said shaft, a clutch member secured to either end of said shaftfmeans between one of said journals and said shaft for supporting an engine block with the shaft therein and for adjusting said block for alining said engine shaft with the power shaft, and a means between the other journal and said power shaft for supporting an engine block with an engine shaft thereiri assembled complete with a transmission and for adjusting said block for alining the last described engine shaft with said power shaft.

11. In a device of the class described, a

'frame, a power shaft mounted thereon,

means for transmittin motion to said ower shaft, said means inc udin a clutch evice, ajournal mounted on said frame spaced from said power shaft, and having its axis alined with the axis of the power shaft, means for supporting'one end of an engine shaft inalinement with said first shaft when the other end of the engine shaft is supported in said journal, and adjustable means for supporting an engine block intermediate of said journal and said ower shaft with the engine shaft properly received in said block.

12. In a device of the class described, a frame, a power shaft mounted thereon, means for transmitting motion to said power shaft, said means including a clutch device, and a means-including adjustable members, for supporting an engine block with a shaft therein in position for holding said latter shaftin alinement with said power shaft.

13. In a device of the class described, a frame, a power shaft mounted thereon,

means for transmitting rotation to said power shaft, said means including a clutch device, and means on said frame for adjusting an engine block for alining a shaft therein with said power shaft, said frame being so shaped that when a block is supported thereon access may be had to the block fromabove or below the supporting portions of the frame, for the removal of the pistons.

Des Moines, Iowa, August 22, 1917.

v EDWARD J. MILES. 

